The rink is 29' x 48' and uses a one piece of agricultural silo plastic 
as a liner.  This really worked a lot easier than the snow base that I had 
used in the previous year. The boards are 1-1/4" rough barn boards given 
to me for the rink and on the far end closest to the little shed the ice 
is 22 inches deep, about 3 inches on the near end. Once the liner was 
filled and frozen, I then used a flooding wand to build up thickness. Once 
the ice is thick enough I use a homemade ice resurfacer (pipe with 
holes and towel), after the kids are done skating, to keep the ice smooth 
and in good shape.

My two boys, ages 7 & 9, both in hockey at the novice and atom level 
respectively are really enjoying the rink and my oldest has really 
developed a good wrist shot from his practice shooting on the backyard 
ice.  The youngest is also working on his shot as well."

Lucky boys, I would say.  Great job and thanks for the pics Greg.